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cmd/compile: record original and absolute file names for line directives

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Also, with this change, error locations don't print absolute positions
in [] brackets following positions relative to line directives. To get
the absolute positions as well, specify the -L flag.

Fixes #22660.

Change-Id: I9ecfa254f053defba9c802222874155fa12fee2c
Reviewed-on: https://go-review.googlesource.com/77090
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
This commit is contained in:
griesemer 2017-11-10 11:38:51 -08:00 • committed by Robert Griesemer
parent 2c00dea18b
commit ca2a886cba
12 changed files with 83 additions and 27 deletions
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2
src/cmd/compile/internal/syntax/parser_test.go
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@ -221,7 +221,7 @@ func TestLineDirectives(t *testing.T) {
if msg := perr.Msg; msg != test.msg {
t.Errorf("%s: got msg = %q; want %q", test.src, msg, test.msg)
}
if filename := perr.Pos.RelFilename(); filename != test.filename {
if filename := perr.Pos.AbsFilename(); filename != test.filename {
t.Errorf("%s: got filename = %q; want %q", test.src, filename, test.filename)
}
if line := perr.Pos.RelLine(); line != test.line+linebase {